llvm-project.git/llvm/test/Transforms/LoopRotate/coroutine.ll, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [LoopRotate][coroutines] Avoid hoisting addresses of thread-local variables outside loops in coroutines (#81937) 2024-02-20T19:14:09+00:00 Alan Zhao alanzhao1@users.noreply.github.com 2024-02-20T19:14:09+00:00 a9b5753220ef1f24b1b5bb44b5ca485a66c66349 Because loops in coroutines may have a co_await statement that reschedules the coroutine to another thread, we cannot cache addresses of thread-local variables obtained inside a loop by moving the computation of thoes addresses outside a loop. Since LLVM doesn't have a model for coroutine memory accesses, this patch fixes this bug by disabling this optimization for coroutines in the same way as https://reviews.llvm.org/D135550 and https://reviews.llvm.org/D151774. 
Because loops in coroutines may have a co_await statement that
reschedules the coroutine to another thread, we cannot cache addresses
of thread-local variables obtained inside a loop by moving the
computation of thoes addresses outside a loop.

Since LLVM doesn't have a model for coroutine memory accesses, this
patch fixes this bug by disabling this optimization for coroutines in
the same way as https://reviews.llvm.org/D135550 and
https://reviews.llvm.org/D151774.
 [NFC] Precommit a coroutine test for LoopRotate (#82031) 2024-02-19T22:47:32+00:00 Alan Zhao alanzhao1@users.noreply.github.com 2024-02-19T22:47:32+00:00 61a96e5afadd034e7d13126f0e43731bbad7ad89 This is to provide a baseline test for https://github.com/llvm/llvm-project/pull/81937. 
This is to provide a baseline test for
https://github.com/llvm/llvm-project/pull/81937.